You probably already have
cornerstone articles, even if you haven't appointed them as such. These
are your most important articles, the foundation of your site. Yoast SEO
helps you treat them as you should, which benefits your ranking! Here's a
how-to on creating a cornerstone content strategy and using our free
plugin to actually implement it. Practical SEO, here you go!
How to use Yoast SEO to make cornerstone content rank »